Drug Interactions between aminophylline / ephedrine / guaifenesin / phenobarbital and betaxolol ophthalmic

Ask your doctor before using betaxolol ophthalmic together with aminophylline. Using these medications together can make betaxolol ophthalmic less effective and increase the effects of aminophylline. Contact your doctor if you experience nausea, vomiting, insomnia, tremors, restlessness, uneven heartbeats, or difficulty breathing. If your doctor does prescribe these medications together, you may need a dose adjustment or special test to safely use both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Using PHENobarbital together with aminophylline may decrease the effects of aminophylline. Contact your doctor if your condition changes or if you experience breathing difficulties. If your doctor does prescribe these medications together, you may need a dose adjustment or special test to safely use both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Talk to your doctor before using ephedrine-containing products together with a beta-blocker like betaxolol ophthalmic. Some beta-blockers can reduce the effects of ephedrine in relaxing airway muscles to help you breathe. In addition, if you have been using betaxolol ophthalmic, you may not respond as well to ephedrine when it is given by injection to treat an emergency such as shock or falling blood pressure. Your healthcare provider should always be told if you are receiving, or have recently received, beta-blocker therapy. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Information for this minor interaction is available on the professional version.